| 摘要 |
PURPOSE:To use a loop antenna in common for FM broadcast receiving, by coupling a built-in loop antenna for medium wave band receiving to an FM antenna circuit. CONSTITUTION:Whether the loop antenna 3 is connected to a medium wave antenna circuit 1 or to an FM antenna circuit 2 is changed over by a switch 7. Thus, in receiving an FM broadcast, a loop antenna 3 is used for the FM antenna by switching the loop antenna 3 to the FM antenna circuit 2, and the FM broadcast is received with sufficient practical sensitivity regardless of more or less low receiving sensitivity in comparison with the use of an external antenna. |
